OPA1642AIDGKR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
OPA1642AIDGKR is a dual JFET-input audio operational amplifier with ultra-low noise, 120dB CMRR, and voltage-feedback architecture. Ideal for professional audio equipment and precision signal processing. From $0.79 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA1642AIDGKR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7875(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel JFET-input op-amp with ultra-low bias current (0.02nA max) for minimal signal distortion
- Exceptional 120dB minimum common-mode rejection ratio for superior noise immunity
- Voltage-feedback architecture with frequency compensation for stable, high-fidelity audio performance
- Compact Small Outline package (VSSOP/DGK) optimized for space-constrained audio PCB designs
- SoundPlus high-performance grade ensuring audiophile-quality signal integrity across the audio band
Applications
The OPA1642AIDGKR is designed for professional and consumer audio applications including preamplifiers, mixing consoles, and high-fidelity DAC/ADC interface circuits. Its ultra-low JFET-input bias current and high CMRR make it well-suited for precision instrumentation and medical audio equipment. It also serves as a drop-in upgrade in active crossover networks, equalizers, and studio recording equipment where low noise and dynamic range are critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00002 µA |
| Bias Current-Max (IIB) @25C | 0.00002 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 126dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.00002 µA |
| Input Offset Voltage-Max | 3500 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -20 V |
| Neg Supply Voltage-Nom (Vsup) | -18 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 20V/us |
| Supply Current-Max | 4.6mA |
| Supply Voltage Limit-Max | 20V |
| Supply Voltage-Nom (Vsup) | 18V |
| Surface Mount | YES |
| Technology | JFET |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 11000 |
| Voltage Gain-Min | 501000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA1642AIDGKR:
Frequently Asked Questions
What are the key electrical specifications of the OPA1642AIDGKR?
The OPA1642AIDGKR features a maximum input bias current (IIB) of 0.00002µA (20pA), an input offset current of 0.00002µA, a minimum common-mode rejection ratio of 120dB (typical 126dB), and a voltage-feedback architecture with built-in frequency compensation. It operates as a dual-channel op-amp in a Small Outline package, making it ideal for precision audio applications.
What applications is the OPA1642AIDGKR best suited for?
The OPA1642AIDGKR is optimized for professional audio signal chains including preamplifiers, studio mixing consoles, active filters, and high-fidelity DAC output stages. Its SoundPlus designation and ultra-low JFET input bias current ensure minimal noise floor and high dynamic range, making it suitable for instrumentation amplifiers and medical audio equipment as well.
What package does the OPA1642AIDGKR come in and are there alternative package options?
The OPA1642AIDGKR is available in a VSSOP-8 (DGK) Small Outline package with a tape-and-reel suffix (R) for automated assembly. Texas Instruments also offers the OPA1642AIDGKT in cut-tape format, and the OPA1642AID in a larger SOIC-8 package for prototyping or hand-soldering applications requiring easier PCB handling.
How does the OPA1642AIDGKR compare to a standard op-amp like the TL072?
Compared to the TL072, the OPA1642AIDGKR delivers significantly lower noise, a higher CMRR of 120dB versus ~80dB, and a much lower input bias current of 0.02nA versus up to 200pA for TL072. These improvements translate to noticeably lower distortion and better signal fidelity in audio circuits, justifying its use in professional-grade designs where audio quality is paramount.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8750 | $1.88 |
| 10+ | $1.4900 | $14.90 |
| 25+ | $1.3200 | $33.00 |
| 41+ | $1.1250 | $46.13 |
| 108+ | $0.8438 | $91.13 |
| 1160+ | $0.7875 | $913.50 |
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